@article{BASM_2007_1_a1, author = {E. Naidenova and M. N. Popa and V. Orlov}, title = {Classification of $GL(2,\mathbb R)$-orbi's dimensions for the differential equations' system with homogeneities }, journal = {Buletinul Academiei de \c{S}tiin\c{t}e a Republicii Moldova. Matematica}, pages = {25--36}, publisher = {mathdoc}, number = {1}, year = {2007}, language = {en}, url = {http://geodesic.mathdoc.fr/item/BASM_2007_1_a1/} }